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CVE-2011-3009

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for...

5.0 MediumFix available

CVE-2011-3009 is a medium vulnerability (CVSS 5.0) in Ruby-lang Ruby, published August 5, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.02%, the 81st percentile. Fixed in ruby 0:1.8.7.352-3.el6.

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.

Exploit likelihood

2.02%Up 0.9 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.

Record
CVE-2011-3009
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-310
Updated
2026-11-02
CVE List No score

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.

Record
CVE-2011-3009
Updated
2026-11-02
EUVDEUVD-2011-2977 No score

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.

Record
EUVD-2011-2977
Updated
2026-11-03
GitHub AdvisoriesGHSA-mg6g-jwh6-pwjf No score

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for...

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.

Record
GHSA-mg6g-jwh6-pwjf
Updated
2026-11-02
OSVRHSA-2026:7305 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:7305
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVRHSA-2026:7307 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:7307
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVRHSA-2026:8838 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:8838
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ruby
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-debuginfo
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-devel
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-docs
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-rdoc
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-ri
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-static
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-tcltk
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-irb
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-libs
Red Hat:enterprise_linux:6::client
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
Show 102 moreShow less
Affected packages
PackageAffectedFixed
ruby
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-debuginfo
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-devel
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-docs
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-rdoc
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-ri
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-static
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-tcltk
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-irb
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-libs
Red Hat:enterprise_linux:6::computenode
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-devel
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-docs
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-rdoc
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-ri
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-static
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-tcltk
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-irb
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-libs
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-debuginfo
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-devel
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-docs
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-rdoc
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-ri
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-static
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-tcltk
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-irb
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
ruby-libs
Red Hat:enterprise_linux:6::workstation
 before 0:1.8.7.352-3.el6
0:1.8.7.352-3.el6
irb
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-devel
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-docs
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-libs
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-mode
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-tcltk
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
irb
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-devel
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-docs
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-libs
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-mode
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-tcltk
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
irb
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-devel
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-docs
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-libs
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-mode
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-tcltk
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
irb
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-devel
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-docs
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-libs
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-mode
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby-tcltk
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-18.el4
0:1.8.1-18.el4
ruby
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-docs
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-irb
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-libs
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-rdoc
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-ri
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-tcltk
Red Hat:enterprise_linux:5::client
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-debuginfo
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-devel
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-mode
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-devel
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-docs
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-irb
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-libs
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-mode
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-rdoc
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-ri
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby-tcltk
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-22.el5_7.1
0:1.8.5-22.el5_7.1
ruby3.3
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-bundled-gems
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-default-gems
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-devel
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-doc
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-libs
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.4
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-bundled-gems
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-default-gems
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-devel
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-doc
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-libs
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby4.0
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-bundled-gems
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-default-gems
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-devel
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-doc
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-libs
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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